Generation of transient nuclear inversion using XFEL
We collaborate with Adriana Pálffy-Buß from university Würzburg and show that transient nuclear population inversion can be coherently...
Air Laser Gain & Population Inversion
The mechanism of laser-like emission at 391 nm from nitrogen gas irradiated by a strong 800 nm pump laser and a weak 400 nm seed laser is...
Amplified Spontaneous Emission v.s Superfluorescence pumped by X-ray Free Electron Laser
The transition from the amplification of spontaneous emission to superfluorescence in a three-level and swept-gain medium excited by an...